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author | Mitch Curtis <mitch.curtis@qt.io> | 2021-07-28 11:21:25 +0200 |
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committer | Mitch Curtis <mitch.curtis@qt.io> | 2021-07-28 11:21:25 +0200 |
commit | 16436239cd35ba7346b89a1f57d5b29dc786f4c6 (patch) | |
tree | 7e9011d0dfdda5ef9ccc302dae69ab3e5ba4b8cc /src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag | |
parent | 5a5b9c2344b961e984a2c860bb0c33022d641f32 (diff) | |
parent | 89d3486ad18d782a8141037a2bffb7992118cc78 (diff) |
Merge qtquickcontrols2 into qtdeclarative
Task-number: QTBUG-95173
Change-Id: I2cf31e30127e8cc2f10304cabf4ff7f5050633b8
Diffstat (limited to 'src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag')
-rw-r--r-- | src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag b/src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag new file mode 100644 index 0000000000..432d86b5d5 --- /dev/null +++ b/src/quickcontrols2/material/shaders/+glslcore/RectangularGlow.frag @@ -0,0 +1,25 @@ +#version 150 + +uniform float qt_Opacity; +uniform float relativeSizeX; +uniform float relativeSizeY; +uniform float spread; +uniform vec4 color; + +in vec2 qt_TexCoord0; +out vec4 fragColor; + +float linearstep(float e0, float e1, float x) +{ + return clamp((x - e0) / (e1 - e0), 0.0, 1.0); +} + +void main() +{ + float alpha = + smoothstep(0.0, relativeSizeX, 0.5 - abs(0.5 - qt_TexCoord0.x)) * + smoothstep(0.0, relativeSizeY, 0.5 - abs(0.5 - qt_TexCoord0.y)); + + float spreadMultiplier = linearstep(spread, 1.0 - spread, alpha); + fragColor = color * qt_Opacity * spreadMultiplier * spreadMultiplier; +} |